#include <iostream>
using namespace std;
typedef long long LL;

const int N = 1010;
LL Sum[N][N];

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0), cout.tie(0);
    int n, m, q;
    cin >> n >> m >> q;
    for (int i = 1; i <= n; ++i)
        for (int j = 1; j <= m; ++j)
        {
            int tmp = 0;
            cin >> tmp;
            Sum[i][j] = tmp + Sum[i - 1][j] + Sum[i][j - 1] - Sum[i - 1][j - 1];
        }
    while (q--)
    {
        int x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << Sum[x2][y2] + Sum[x1 - 1][y1 - 1] - Sum[x1 - 1][y2] - Sum[x2][y1 - 1] << endl;
    }
    return 0;
}